Lantz is a distinctive boys' name in United States, ranking #5523 in 1999 with 12 recorded births. The name reached its all-time peak in 2006 with 18 births ranking #4972. Since 1996, the popularity has decreased by 29.4%. In 1999, approximately 1 in every 160,007 boys born was named Lantz. FALLING Recent data shows the name is currently falling.